From 7a4403d2a26250c82b6f089de3b56e076c69e39a Mon Sep 17 00:00:00 2001
From: tom barrett <spalf0@gmail.com>
Date: Tue, 13 Mar 2018 04:58:12 -0500
Subject: -added matching velocity vector of target and creating a velocity
 vector to target

---
 src/engines.rs | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 60 insertions(+), 2 deletions(-)

(limited to 'src/engines.rs')

diff --git a/src/engines.rs b/src/engines.rs
index e951856..548b44b 100644
--- a/src/engines.rs
+++ b/src/engines.rs
@@ -4,18 +4,38 @@ use termion::async_stdin;
 use std::thread::sleep;
 use std::io::{Read, Write, stdout};
 use std::time::Duration;
-use std::io::BufRead;
+use std::io::{BufRead, BufReader};
+
+extern crate termion;
 
 use ship::Ship;
 use mass::Mass;
 use connection::Connection;
 
-pub fn client_engines(mut stream : TcpStream) {
+pub fn client_engines(mut stream : TcpStream, mut buff_r : BufReader<TcpStream>) {
     let stdout = stdout();
     let mut stdout = stdout.lock().into_raw_mode().unwrap();
     let mut stdin = async_stdin().bytes();
 
     loop {
+        let mut data = String::new();
+        buff_r.read_line(&mut data).unwrap();
+
+        let has_target = match data.as_bytes() {
+            b"true\n" => true,
+            _ => false
+        };
+
+        write!(stdout, "{}{}use numpad to freely move\n", termion::clear::All, termion::cursor::Goto(1, 1)).unwrap();
+        write!(stdout, "{}+ : speedup", termion::cursor::Goto(1, 2)).unwrap();
+        write!(stdout, "{}- : slowdown", termion::cursor::Goto(1, 3)).unwrap();
+        write!(stdout, "{}q : quit", termion::cursor::Goto(1, 4)).unwrap();
+
+        if has_target {
+            write!(stdout, "{}c : mimic targets velocity vector", termion::cursor::Goto(1,5)).unwrap();
+            write!(stdout, "{}t : accelerate torwards target", termion::cursor::Goto(1,6)).unwrap();
+        }
+
         match stdin.next() {
             Some(c) => {
                 let c = c.unwrap();
@@ -37,7 +57,19 @@ pub fn client_engines(mut stream : TcpStream) {
 
 impl Connection {
     pub fn server_engines(&mut self, masses : &mut Vec<Box<Mass>>) -> bool {
+        let m = masses.to_vec();
         let ship = masses[self.index].downcast_mut::<Ship>().unwrap();
+
+        let mut send = String::new();
+        match ship.recv_target().is_some() {
+            true => send.push_str("true\n"),
+            false => send.push_str("false\n"),
+        }
+        match self.stream.write(send.as_bytes()) {
+            Ok(_result) => (),
+            Err(_error) => return false,
+        }
+
         let mut acceleration = (0.0, 0.0, 0.0);
         let mut data = String::new();
         match self.buff_r.read_line(&mut data) {
@@ -48,7 +80,32 @@ impl Connection {
                 b"2\n" => acceleration.1 -= 0.1,
                 b"4\n" => acceleration.2 += 0.1,
                 b"6\n" => acceleration.2 -= 0.1,
+                b"+\n" => ship.speedup(),
                 b"-\n" => ship.slow(),
+                b"c\n" => {
+                    match ship.recv_target() {
+                        Some(index) => {
+                            let d_v = m[index].recv_velocity();
+                            let m_v = ship.recv_velocity();
+                            acceleration = (d_v.0 - m_v.0,
+                                            d_v.1 - m_v.1,
+                                            d_v.2 - m_v.2);
+                        },
+                        None => (),
+                    }
+                },
+                b"t\n" => {
+                    match ship.recv_target() {
+                        Some(index) => {
+                            let d_p = m[index].position();
+                            let m_p = ship.position();
+                            acceleration = ((d_p.0 - m_p.0) * 0.01,
+                                            (d_p.1 - m_p.1) * 0.01,
+                                            (d_p.2 - m_p.2) * 0.01);
+                        },
+                        None => (),
+                    }
+                },
                 _ => {
                     if result == 0 {
                         return false
@@ -58,6 +115,7 @@ impl Connection {
             Err(_error) => (),
         }
         ship.give_acceleration(acceleration);
+
         true
     }
 }
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